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Somma / Max-Bar (Series 20)

For Bar Diameters up to 3/4" (20mm)

Please Note: Inserts are sold in packages of ten.
PDF   Max-Bar Inserts – Recommended Speeds & Feeds       Max-Bar Catalog
Max-Bar Series 20 Toolholders
Right Hand Shown

Series 20 Toolholders

A/B C D E R.H. HOLDER L.H. HOLDER
.500 3.50 .920 .505 STANR-085-V STANL-085-V
.500 5.00 .920 .505 STANR-085-C STANL-085-C
.625 3.50 .920 .630 STANR-105-V STANL-105-V
.625 4.50 .920 .630 STANR-105-D STANL-105-D
.750 5.00 .920 .755 STANR-125-C STANL-125-C

Holders include, Screw# 4.76-127, and Wrench# T-25-P
Series 20 Toolholders
Please Note: Inserts are sold in packages of ten.


Front Turn (Series 20)

Front Turn (Series 20)

Width Depth Radius R.H. INSERT L.H. INSERT
Inch MM Inch MM Inch MM
.250 6.35 .440 11.2 0 0 TFTR-5040 TFTL-5040
.250 6.35 .440 11.2 .005 0.13 TFTR-5045 TFTL-5045
.250 6.35 .440 11.2 0 0 TFTRB-5040** TFTLB-5040**
.250 6.35 .440 11.2 .005 0.13 TFTRB-5045** TFTLB-5045**

**With chip control



Back Turn (Series 20)

Back Turn (Series 20)

Width Depth Radius R.H. INSERT L.H. INSERT
Inch MM Inch MM
.156 3.96 .440 11.2 0 TBTR-53010 TBTL-53010
.125 3.18 .440 11.2 0 TBTR-5308 TBTL-5308
.093 2.36 .370 9.40 0 TBTR-5306 TBTL-5306
.078 1.98 .300 7.62 0 TBTR-5305 TBTL-5305
.062 1.57 .230 5.84 0 TBTR-5304 TBTL-5304



Plunge & Turn (Series 20)

Square Bottom

Plunge & Turn (Series 20)

Width Depth Radius R.H. INSERT L.H. INSERT
Inch MM Inch MM
.156 3.96 .440 11.2 0 TTGR-5156 TTGL-5156
.125 3.18 .440 11.2 0 TTGR-5125 TTGL-5125
.093 2.36 .370 9.40 0 TTGR-5093 TTGL-5093
.078 1.98 .300 7.62 0 TTGR-5078 TTGL-5078
.062 1.57 .230 5.84 0 TTGR-5062 TTGL-5062
.047 1.19 .130 3.30 0 TTGR-5047 TTGL-5047


Cut-Off (Series 20)

Cut-Off (Series 20)

Width Depth A° R.H. INSERT L.H. INSERT
Inch MM Inch MM
.156 3.96 .440 11.2 15° TCOR-51510 TCOL-51510
.125 3.18 .440 11.2 15° TCOR-5158 TCOL-5158
.093 2.36 .440 11.2 15° TCOR-5156 TCOL-5156
.078 1.98 .370 9.40 15° TCOR-5155 TCOL-5155
.062 1.57 .300 7.62 15° TCOR-5154 TCOL-5154
.047 1.19 .230 5.84 15° TCOR-5153 TCOL-5153
.040 1.00 .180 4.57 20° TCOR-5201M TCOL-5201M



Opp. Hand Cut-Off for Pickoff Spindle (Series 20)
Left hand insert with
Right hand cut-off shown

Opp. Hand Cut-Off for Pickoff Spindle (Series 20)

Width Depth A° R.H. INSERT L.H. INSERT
Inch MM Inch MM
.125 3.18 .440 11.2 15° TCOLR-5158 TCORL-5158
.093 2.36 .440 11.2 15° TCOLR-5156 TCORL-5156
.078 1.98 .370 9.40 15° TCOLR-5155 TCORL-5155
.062 1.57 .300 7.62 15° TCOLR-5154 TCORL-5154
.047 1.19 .230 5.84 15° TCOLR-5153 TCORL-5153
.040 1.00 .180 4.57 20° TCOLR-5201M TCORL-5201M



Grooving (Series 20)

Grooving (Series 20)

Width Depth Radius R.H. INSERT L.H. INSERT
Inch MM Inch MM
.156 3.96 .440 11.2 0 TNGR-5156 TNGL-5156
.125 3.18 .440 11.2 0 TNGR-5125 TNGL-5125
.093 2.36 .370 9.40 0 TNGR-5093 TNGL-5093
.078 1.98 .370 9.40 0 TNGR-5078 TNGL-5078
.062 1.57 .300 7.62 0 TNGR-5062 TNGL-5062
.047 1.19 .230 5.84 0 TNGR-5047 TNGL-5047
.040 1.00 .180 4.57 0 TNGR-5040 TNGL-5040



Threading 60° Centrally Located (Series 20)

Threading 60° Centrally Located (Series 20)

Width Depth Radius R.H. INSERT L.H. INSERT
Inch MM Inch MM Inch MM
.125 3.18 .440 11.2 .004 0.10 TNVR-5125 TNVL-5125
.093 2.36 .370 9.40 .002 0.05 TNVR-5093 TNVL-5093
.047 1.19 .250 6.35 0 0 TNVR-5047 TNVL-5047